Nut-lock.



` 1J, mm,

A NUT Locx. A rrLIoATIoN Hnnn nmz?, 190s.

Patented 00116,-1'908.

[Mellini:

'Ja/ills ida-62? I WWI/amiga borough of Manhattan,l

'tudinal strainl illustrates ATEsPATENT onirica.

JULIUS Alirausa,A orNEw Yoan, N. Y.

Nmeoofiea. I

Nur-1.00K.

Patented ot. 6, i908.

Appliance mea umh av, iena. sesamo. 423,520.

ro an whom #my amara; v Be it kno'wn t'hatI, 'Julius Avenne, a citi# zen y of the nited States, residing in .the

York, countyjof Newv York, andgSta'te of Newy York,l .have "invented certain new and useful Improvements in N unt-Locks, of'which the following. is a specication.

r This invention relates to nut locks and has for its object I for preventing the accidental displacement of a nut. .Iny thi "construction the longistem or be reoeivedby coperative conoidal faces. These conoidal/' faces will not 'only receive the longitudinalfstrain but will also. serve to 'resist `rotation of the nut. In practice there will preferably .he a conoidal bearing face upon 4the ynut"for entering arconoidal socket, themember bearing the socket will -besplit and itsywallsj at the"largerl end ol` A the' socket 1. sufficiently thin to be resilient,

and suliici'ently@thick at thel smaller end to be resistantgfso that-oneportion of` the :tace of the-socket Will actas an abutment. for longitudinal.) strains an ing, a vpart of this specification' `I`ig1`1re y1 partly a sideelevation and partly a longitudinal section! cfa formo my invention. Fig.2 is a longitudinal Section of the bushing ornutlportioni- Fig. 3 is a lon-l gitudinal section' of the shell'l or sleeve porj tion and FigL` 4. is av detail in elevation .of they nut andthe end of the' shell with the Vbushingor nu't; in position on the stem.

-Inv the present illustration are `shovvnthree Vparts,'namely ashell, 10, somewhat in the nature of a sleeve; va stem, 20,' Within the Vwiththe stem. The stemsleeve; and a bushing, 30, in the form of va nut which has screw threaded engagement 2O isshownas screw' threaded and .in .engagement with the nut 30, 'and such- `stem is shown Vextending through the longitudinalbore 11 of the shell vided with suitable Wrench engaging or sleeve 10. The vbushing or' nut 'isfproin `the vcity of New provide improved Ymeans 'another lportion of the'same facewill resist rotation.

In the drawings `accompanyingand formces 31 and a colloidal bearing face 32 .for engagy vinga mating conoidal bearing face 1 2; the

diameter of the bore 11. The stem 20 is of sma-ller diameter than the bore 11 Aand has afree it .in lthe shell. longitudinally at-the end having the socket 1,2, and said' split 13 may extend throughout the entireV sleeve it1V desiredj Assuming that the relative stresses between the stem and the shell will be in the -direction of the arrows 25 and 15 respectively,- and between the shell andthe nut in the directionof'the arrows 15 and 35 respectively, the face 32 will press into the bearingv 12 and will'have a tendency to flex thethinner resilientportion 14 of the shell and place -iriction upon the face 32 for preventing the accidental' rotation of thenut. Vhen the portions 1,4of the shell are tlexedor ex panded lthe slot 13 will open slightly. 'Thisl is illustrated at Y1G in Fig. 4f.

The shell 10 is split The tendency of the thinner portion 14 of revion 17 when the walls are more rapidly thickened, 4so `that the yieldability of the walls at the inner end of the seatl will likewise graduallydecrease. l 4At about the point 1S. a irm abutment will be presented for practically preventing the `further inward y movement of the nut underv normal load. In manufacturingthe,device it can readily be determined what thickness will be necessary` 'for presenting suliicient friction for preventfin-gthe rotation of the nut and' for arresting its inward' movement under the ordinary strains which will be placed upon it. When the ordinaryv longitudinal strains are erc'eeded, the split 1 3 in the 'sleeve will permit a still further-longitudinal movement of the nut. Upon the cessation of:l these 'unusual strains the partswill again assume their normal relative positions, the pressure of the faces4 of the seat 12 upon the=fa'ce {B2-of the nut tendingv to move -the nut in aV contrary direction to thev arrow 35l in Fig. 1.

.The engagement between the nut and the shell is that of Wedgegfaces only, there are,

no abrupt faces presented; The conodial .bearing face 32 seatsfin the conodial socket i rotation of l the nut relative tothe stem andl to the shell. i Attention is calledto the feet ythat the smaller end of the conoid 32 is of tudinal strain received upon a s oping face.

Having thus described my inventlon, I claim:

1. The combination of a shell provided with a bore extending intoa conoidal seat, the shell being longitudinally split through the seat, a screw threaded stem entering the bore and of less diameter than said bore, and a conoidal nut member mounted upon the stem, the smaller end of the conoidal nut member being of less diameter than the diameter of thesaid bore and constructed and adapted to enter the same beyond said seat.

2; The combination with a screw threaded member, of a nut thereon having a conoidal eoofiee bearing portion,v the general line of the face of the larger end of said conoid being dis posed at a 'sli ht angle to its exis end the eneral line o the fece'of the smaller end eing disposed at a relatively greater angle, and a shell provided with a longitudinal bore extendin into a conoidal seat, the outer` and' larger end of the seat being disposed on a general line at a slight angle to the axis of said seatv and constructed and adapted for engaging thelarger end of the conoid of the nut, the wall of the shell at such outer and larger end being resilient, the seat face at theinner and smaller end being disposed at a relatively greater` angle to the said axis and being constructed and adapted for engaging the smaller. end of the conoid on the nut, the said Wall of the shell at theregion of the smaller end of the seat being less resilient than the wall at the larger end of said seat;

Witnesses Cri/ls LroN' ltgissmm, FRED. (l. Donn. 

